import {forwardRef, HTMLAttributes, useEffect, useRef} from "react";
import { cn } from "@/utils/tailwind";
import styled from 'styled-components';
import {Spinner} from "@/components/custom-ui/spinner.tsx";

export type LoadingSkeletonProps = HTMLAttributes<HTMLDivElement> & {
  loading: boolean
  // 是否只在第一次加载的时候使用加载动画，默认 false
  rendersOnlyOnce?: boolean

  // 模式
  // 页面模式使用全屏的大动画
  // 组件模式使用小动画
  mode?: "page" | "component"


}


/**
 * 加载的骨架屏幕
 * @constructor
 */
export const LoadingSkeleton = forwardRef<HTMLDivElement, LoadingSkeletonProps>((
  {
    loading,
    children,
    className,
    rendersOnlyOnce = false,
    mode = "page",
    ...props
  }, ref) => {
  const useLoadingRef = useRef<boolean>(true);

  useEffect(() => {
    if (!rendersOnlyOnce) return
    else if (!useLoadingRef.current) return;

    if (!loading) {
      useLoadingRef.current = false
    }

  }, [loading])

  const spinner = loading && useLoadingRef.current

  if (spinner) {
    return (
      <div
        {...props}
        ref={ref}
        className={cn("w-full h-full", className)}
      >
        <div className={cn(
          "flex flex-row items-center justify-center h-full",
          mode === "page" && "translate-y-[-100px]"
        )}>
          {
            mode === "page" && (<Loader/>)
          }
          {
            mode === "component" && (<Spinner/>)
          }
        </div>
      </div>
    )
  }

  return (
    <>
      {children}
    </>
  )
})

export const Loader = () => {
  return (
    <StyledWrapper>
      <div aria-label="Orange and tan hamster running in a metal wheel" role="img" className="wheel-and-hamster">
        <div className="wheel"/>
        <div className="hamster">
          <div className="hamster__body">
            <div className="hamster__head">
              <div className="hamster__ear"/>
              <div className="hamster__eye"/>
              <div className="hamster__nose"/>
            </div>
            <div className="hamster__limb hamster__limb--fr"/>
            <div className="hamster__limb hamster__limb--fl"/>
            <div className="hamster__limb hamster__limb--br"/>
            <div className="hamster__limb hamster__limb--bl"/>
            <div className="hamster__tail"/>
          </div>
        </div>
        <div className="spoke"/>
      </div>
    </StyledWrapper>
  );
}

const StyledWrapper = styled.div`
    .wheel-and-hamster {
        --dur: 1s;
        position: relative;
        width: 12em;
        height: 12em;
        font-size: 14px;
    }

    .wheel,
    .hamster,
    .hamster div,
    .spoke {
        position: absolute;
    }

    .wheel,
    .spoke {
        border-radius: 50%;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

    .wheel {
        background: radial-gradient(100% 100% at center, hsla(0, 0%, 60%, 0) 47.8%, hsl(0, 0%, 60%) 48%);
        z-index: 2;
    }

    .hamster {
        animation: hamster var(--dur) ease-in-out infinite;
        top: 50%;
        left: calc(50% - 3.5em);
        width: 7em;
        height: 3.75em;
        transform: rotate(4deg) translate(-0.8em, 1.85em);
        transform-origin: 50% 0;
        z-index: 1;
    }

    .hamster__head {
        animation: hamsterHead var(--dur) ease-in-out infinite;
        background: hsl(30, 90%, 55%);
        border-radius: 70% 30% 0 100% / 40% 25% 25% 60%;
        box-shadow: 0 -0.25em 0 hsl(30, 90%, 80%) inset,
        0.75em -1.55em 0 hsl(30, 90%, 90%) inset;
        top: 0;
        left: -2em;
        width: 2.75em;
        height: 2.5em;
        transform-origin: 100% 50%;
    }

    .hamster__ear {
        animation: hamsterEar var(--dur) ease-in-out infinite;
        background: hsl(0, 90%, 85%);
        border-radius: 50%;
        box-shadow: -0.25em 0 hsl(30, 90%, 55%) inset;
        top: -0.25em;
        right: -0.25em;
        width: 0.75em;
        height: 0.75em;
        transform-origin: 50% 75%;
    }

    .hamster__eye {
        animation: hamsterEye var(--dur) linear infinite;
        background-color: hsl(0, 0%, 0%);
        border-radius: 50%;
        top: 0.375em;
        left: 1.25em;
        width: 0.5em;
        height: 0.5em;
    }

    .hamster__nose {
        background: hsl(0, 90%, 75%);
        border-radius: 35% 65% 85% 15% / 70% 50% 50% 30%;
        top: 0.75em;
        left: 0;
        width: 0.2em;
        height: 0.25em;
    }

    .hamster__body {
        animation: hamsterBody var(--dur) ease-in-out infinite;
        background: hsl(30, 90%, 90%);
        border-radius: 50% 30% 50% 30% / 15% 60% 40% 40%;
        box-shadow: 0.1em 0.75em 0 hsl(30, 90%, 55%) inset,
        0.15em -0.5em 0 hsl(30, 90%, 80%) inset;
        top: 0.25em;
        left: 2em;
        width: 4.5em;
        height: 3em;
        transform-origin: 17% 50%;
        transform-style: preserve-3d;
    }

    .hamster__limb--fr,
    .hamster__limb--fl {
        clip-path: polygon(0 0, 100% 0, 70% 80%, 60% 100%, 0% 100%, 40% 80%);
        top: 2em;
        left: 0.5em;
        width: 1em;
        height: 1.5em;
        transform-origin: 50% 0;
    }

    .hamster__limb--fr {
        animation: hamsterFRLimb var(--dur) linear infinite;
        background: linear-gradient(hsl(30, 90%, 80%) 80%, hsl(0, 90%, 75%) 80%);
        transform: rotate(15deg) translateZ(-1px);
    }

    .hamster__limb--fl {
        animation: hamsterFLLimb var(--dur) linear infinite;
        background: linear-gradient(hsl(30, 90%, 90%) 80%, hsl(0, 90%, 85%) 80%);
        transform: rotate(15deg);
    }

    .hamster__limb--br,
    .hamster__limb--bl {
        border-radius: 0.75em 0.75em 0 0;
        clip-path: polygon(0 0, 100% 0, 100% 30%, 70% 90%, 70% 100%, 30% 100%, 40% 90%, 0% 30%);
        top: 1em;
        left: 2.8em;
        width: 1.5em;
        height: 2.5em;
        transform-origin: 50% 30%;
    }

    .hamster__limb--br {
        animation: hamsterBRLimb var(--dur) linear infinite;
        background: linear-gradient(hsl(30, 90%, 80%) 90%, hsl(0, 90%, 75%) 90%);
        transform: rotate(-25deg) translateZ(-1px);
    }

    .hamster__limb--bl {
        animation: hamsterBLLimb var(--dur) linear infinite;
        background: linear-gradient(hsl(30, 90%, 90%) 90%, hsl(0, 90%, 85%) 90%);
        transform: rotate(-25deg);
    }

    .hamster__tail {
        animation: hamsterTail var(--dur) linear infinite;
        background: hsl(0, 90%, 85%);
        border-radius: 0.25em 50% 50% 0.25em;
        box-shadow: 0 -0.2em 0 hsl(0, 90%, 75%) inset;
        top: 1.5em;
        right: -0.5em;
        width: 1em;
        height: 0.5em;
        transform: rotate(30deg) translateZ(-1px);
        transform-origin: 0.25em 0.25em;
    }

    .spoke {
        animation: spoke var(--dur) linear infinite;
        background: radial-gradient(100% 100% at center, hsl(0, 0%, 60%) 4.8%, hsla(0, 0%, 60%, 0) 5%),
        linear-gradient(hsla(0, 0%, 55%, 0) 46.9%, hsl(0, 0%, 65%) 47% 52.9%, hsla(0, 0%, 65%, 0) 53%) 50% 50% / 99% 99% no-repeat;
    }

    /* Animations */
    @keyframes hamster {
        from, to {
            transform: rotate(4deg) translate(-0.8em, 1.85em);
        }

        50% {
            transform: rotate(0) translate(-0.8em, 1.85em);
        }
    }

    @keyframes hamsterHead {
        from, 25%, 50%, 75%, to {
            transform: rotate(0);
        }

        12.5%, 37.5%, 62.5%, 87.5% {
            transform: rotate(8deg);
        }
    }

    @keyframes hamsterEye {
        from, 90%, to {
            transform: scaleY(1);
        }

        95% {
            transform: scaleY(0);
        }
    }

    @keyframes hamsterEar {
        from, 25%, 50%, 75%, to {
            transform: rotate(0);
        }

        12.5%, 37.5%, 62.5%, 87.5% {
            transform: rotate(12deg);
        }
    }

    @keyframes hamsterBody {
        from, 25%, 50%, 75%, to {
            transform: rotate(0);
        }

        12.5%, 37.5%, 62.5%, 87.5% {
            transform: rotate(-2deg);
        }
    }

    @keyframes hamsterFRLimb {
        from, 25%, 50%, 75%, to {
            transform: rotate(50deg) translateZ(-1px);
        }

        12.5%, 37.5%, 62.5%, 87.5% {
            transform: rotate(-30deg) translateZ(-1px);
        }
    }

    @keyframes hamsterFLLimb {
        from, 25%, 50%, 75%, to {
            transform: rotate(-30deg);
        }

        12.5%, 37.5%, 62.5%, 87.5% {
            transform: rotate(50deg);
        }
    }

    @keyframes hamsterBRLimb {
        from, 25%, 50%, 75%, to {
            transform: rotate(-60deg) translateZ(-1px);
        }

        12.5%, 37.5%, 62.5%, 87.5% {
            transform: rotate(20deg) translateZ(-1px);
        }
    }

    @keyframes hamsterBLLimb {
        from, 25%, 50%, 75%, to {
            transform: rotate(20deg);
        }

        12.5%, 37.5%, 62.5%, 87.5% {
            transform: rotate(-60deg);
        }
    }

    @keyframes hamsterTail {
        from, 25%, 50%, 75%, to {
            transform: rotate(30deg) translateZ(-1px);
        }

        12.5%, 37.5%, 62.5%, 87.5% {
            transform: rotate(10deg) translateZ(-1px);
        }
    }

    @keyframes spoke {
        from {
            transform: rotate(0);
        }

        to {
            transform: rotate(-1turn);
        }
    }`;
